name: Haskell CI
on:
  pull_request:
    branches:
      - dev
      - main
  push:
    branches:
      - main

jobs:
  build:
    runs-on: docker
    container:
      image: haskell:9.10  # Official Haskell image with GHC 9.10 + Cabal preinstalled
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Check versions
        run: |
          ghc --version
          cabal --version

      # Manual caching with volumes (act-friendly)
      - name: Cache Cabal store
        run: |
          mkdir -p ~/.cabal/packages ~/.cabal/store
          cabal update

      - name: Update Cabal package index
        run: cabal update

      - name: Configure project
        run: cabal configure --enable-tests --enable-benchmarks

      - name: Build dependencies
        run: cabal build --only-dependencies --enable-tests --enable-benchmarks

      - name: Build project
        run: cabal build --enable-tests --enable-benchmarks

      - name: Run tests
        run: cabal test --test-show-details=direct

      - name: Run documentation build
        run: cabal haddock